Observe either of the procedures below to pressurise the water-cooling system.
1.When the special tool radiator cap tester is not used
(1) Start the "Coolant refilling control" (refer to Coolant Refilling ).

2.When the special tool radiator cap tester is used
(1) Use the special tool below.

  • Radiator cap tester (MB992193)

    • A: Tester
    • B: Adapter
  • Radiator cap tester adapter set (MB992190)

    • A: System adapter
caution Do not pressurise 44 kPa or more.
Mount the special tool to the EV radiator condenser tank, and perform the pressurisation.
3.Check the EV radiator, the electric water pump, the hoses or pipes for motor coolant leakage.